Error uploading firmware from Qt

Hello,
I’m a new in the Px4 development.
I’m trying to setup build environment qith Qt on Ubuntu.
I performed all steps according to:
https://dev.px4.io/en/setup/building_px4.html
And i get build successful.
The last step is upload to the target board, and here it fails to me.
The answer is:

make:
*** No rule to make target ‘upload’. Stop.

I saw same problem here, but it didn’t help me.
The working directory is different.

Please help.

Alex.

Try this

Hi @Bart,
thank you for your help.

It didn’t worked.
Same error.

I decided to switch to Netbeans IDE, and it worked there.